SABnzbd Forums

Using SABnzbd as my Usenet client, I have set up UsenetServer as my primary server and Newshosting as my secondary. I have successfully tested the connections with both, yet UsenetServer has no presence on my PC. Consequently, I have no way to know which server is in use. How can you tell by the way?

You can't. That's not how this works.
You should read the Server Priorities information on the Wiki Servers page.